Window screen



Feb. Z, 11923.

J. M. LANG WINDOW SCREEN Feb. 20, 1923.

J. M. LANG WINDOW SCREEN 2 sheets-sheet 2 Filed Dec lO, 192].

tatami aat. ae, iaaa JOSEPH'M. LANG', OIE' BUFFALO, NEW YORK.

WINDOW SCREEN.

application met pecember io, 1921. serial No. 521,491.

To all whom zi may concern.:

Be it known that I, JOSEPH M. LANG, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented a new and useful llmprovement in Window Screens, of which the following is a specification.

This invention relatesto window screens of the kind which are made in sections which are adapted to move into and out of their operative positions when the window is opened and closed.

The objects of this invention are to provide a screen of this kind of improved construction in which each of the sections of the screen are guided independently of the other sections into and out of their operative positions; also to provide a. screen of this kind which forms a tight closure with the window frame and sash in anyposition of the sash, thus positively excluding insects or the like and which also cannot be removed from the exterior of the building; also to improve the construction of window screens in other respects hereinafter specified.

In the accompanying drawings :l

Fig. 1 is a fragmentaryperspective view of a window screen embodying the invention, showing the saine applied to a window.

Fig. 2 is a sectional elevation of the window frame showing the guide means for the window screen, the screen being omitted.

Fig., 3 is a sectional plan View of the window frame on line 3 3 Fig. 2.

Fig. l is a fragmentary transverse sectional elevation of a window showing the screen embodying the invention in operative relation thereto and showing the window open.

Fig. 5 is a similarview showing the window closed.

Fig. 6 is a fragmentary perspective view on an enlarged scale of a section of the screen.

Fig.. 7 is a fragmentary sectional elevation on an enlarged scale showing the connection between the screen sect-ions and the guide device therefor.

A represents a window frame having upper and lower sash B, C, slidably arranged therein, the two sash being separated by the usual parting strips a forming guide grooves or ways in the frame in which the edges of the sash are slidably arranged. The window may be of any suitable or desired construction aiid the window screen embodying the invention maybe applied either to the upper or lower sash, as may be desired. In the embodiment of the invention illustrated in the accompanying drawings, the screen is shown as applied to the lower ,saslL rllhe window screen comprises a plurality of sections which are adapted to be joined to form a screen, one end section D being secured to the sash and the other end section E being secured to the window frame. A plurality of intermediate sections F is arranged between the two end sectionsand the l several sections are provided with flanges or other connecting means adapted to cooperate with adjacent sections so that upon raising the window the sections will successively be rised by the flanges of the "section next a ove.

Inthe particular construction shown in tion of the sash. 'llhe frame is also provided 85 with a transversely extending part da which extends along the lower edge of the sash and which terminates at its outer edge in a. downwardly extending protecting flange D4, all

of these parts being preferably formed integral with the frame of the upper section, as shown in Figs. land il. rllhe lower flange d2 of the upper section is adapted to engage with an oppositely extending upper ange f of next intermediate section F of the screen, the flange f bein formed along the upper edge of a metallic frame f which surrounds the screen f2 and the lower end of the intermediate section is provided with a flange f3 adapted to engage with a. correl0@ spending flange f of the next intermediate section F. rlhe lower flange f3 of the lowest intermediate section Fis adapted to engage a flange e extending inwardly from the lowest section E, which in the construction shown is provided with a bottom flangee secured to: the window frame. Consequently, when the window is closed, all of the sections will occupy a comparatively small space, as illustrated in Fig. 5, and as the H0 window is opened, the uppermost` section' D is raised first, and when the lower flange d2 upwardly 80 i thereof engages the upper flange of the next intermedia-te section F, this intermediate section will be raised, and when the lower flange thereof en ages the next section, thislnext section wilI be raised, and so orth until all of the intermediate sections are raised. Fig. 1 illustrates the window partly raised and Fig. 4 lshows the same in its fully elevated position, in which case further raising of the window is prevented by the engagement of the sections with each other. vny other connections between adjacent sections whereby a section after an initial movement carries with it the next lower section, may be provided, if desired, in place of the cooperating flanges shown. 1

In order to prevent the sections from 1nterfering with each other when the window is raised or lowered, each section is preferably provided with a guide track or guide means of its own, and in the construction shown for this purpose, guide plates Gr are providedfwhich are secured to the window frame at the sides of the sash and which have a plurality of tracks g adapted to engage with the screen sections, these tracks being preferably of different lengths, depending upon the lengths of the paths of movement of the various screen sections. The guide tracks shown are preferably arranged within the guide grooves or ways of the window frame, where they are entirely hidden from view when the window is closed and adapted to cooperate with the si-de edges of the screen sections in such a way that each section will be guided in its movement so as to prevent the same from interfering with the operation of any other section. Any suitable means may be provided for guiding the sections on the tracks g. In the construction shown for this purposev the frames of the sections are provided attheir. ends with guide ears or projections H which are alternately oii'set in opposite directions from the body portion of the frame in1 such a manner that the guide projections H will engage the opposite sides of the guide tracks g. In the construction shown, three of these guide projections are provided, the upper and lower projections being offset in Ione direction to engage one side of a guide track g,

the intermediate projection being offset in the opposite direction to engage the other side of the guide track. This construction is simple and inexpensive, and not only Jforms a secure gui-de means for the sections, but also forms with the guide rail a closer fit or joint which prevents insects from passing through the window at these portions. The connection between the upper and lower anges of adjacent screen sections is also so formed as to exclude insects.

The window screen described is simple and inexpensive in construction since the frames of the sections can be readily formed from a Single im of man, and by providing an indlvi ual guide track for each end of each the screen does not in any way detract from the Aappearance of the window. Furthermore, the screen is not removable either when the window is opened or closed and therefore resists the entrance through the window by thieves or burglars.

The screen also ermits the window to be opened to any desired extent and in' any of the positions of the sash, the screen effectively performs its desired function.

f I claim as my invention 1. The combination with a window `frame and sash movable therein, of a plurality of sections arranged in substantially vertical planes and movable in said planes into and out of their operative positions, guide means for said sections on said window frame, means on said sections cooperating with said gulde means for guiding each section into and out of its operative position, and a connection between said sections and said sash to cause a movement of the sash to produce a corresponding movement of one or more of said sections.

y 2.l The combination with a window frame having guide ways and sash movable in said guide ways, of a plurality of sections movable vertically into and out of their operative positions, guide tracks for each section arranged in said guide ways, means on said sections cooperating with said guide tracks whereby each section travels into and out of its operative position in its own path of movement.

3. The combination of a window'frame and a sash movable in the frame, aA plurality of screen sections, each of which is provided 4. In a wlndow screen, the combinationof a plurality of sections, means at the upper and lower edges of adjacent sections for causing theI lower portion of one section to engage the upper portion of an adjacent section to raise the same, means for guiding said sections in their movements, and means on one of said sections for securing said section to a part of the window whereby the window, when opened will, move said sections into operativey positions, said lastmentioned means including a part which covers said sections when the window is closed.

5. In a Window screen, the combination of a plurality of sections, cooperating portions at the upper and lower edges of said sectlons which are arranged to cause the lower portion of one section to engage the uppe r p0rtion of an adjacent section to ralse said adjacent section, guide means for holding said sections in operative relation to each other and means on one of said sections for securing said section to a part of the window whereby the window, when opened will move said sections into operative positions,-

said last-mentioned means including a part which covers said; sections when the Window is closed. ,l

6. The combination with a Window frame having guide Ways in the opposite sldes thereof, and sash movable in said gulde ways, of a plurality of sections, flanges on the upper and lower edges of said sectil ns which are so arranged that the lower flange of one section will engage the upper flange of the adjacent section whereby said sections may be successively raised, said flanges also forming a tight connection between adjacent sections, and guide tracks for said sections arranged in said guide ways-and concealed by said sash when the window is closed.

7. The combination with a window frame having guide ways in the opposite sides thereof, and sash movable in said guide ways, of a plurality of sections, means at the upper and lower edges of adjacent sections for causing the lower portion of one section to engage the upper portion of an adjacent section to raise the same, guide' tracks arranged at opposite sides of said 'screen in said guide ways, and projecting portions on said sections which engage with said guide tracks for guiding sai-d sections into and out of their operative positions.

8. The combination with a window frame and sash movable therein, of a screen comprising a plurality of sections movable vertically into and out of their operative positions, guide mea-ns for said'sections on said window frame, means on' said sections cooperating with said guide means, andparts on said sections adapted to interlock with corresponding parts of adjacent sections, one end section of said screen being secured to a sash and the other end section being secured to the Window frame.

9. The combination with a window frame and sash movable therein, of a screen comprising a plurality of sections movable vertically into and out of their operative positions, guide means for said sections on said window frame, and means at the upper and lower edges of adjacent sections for causing the lower portions of one section to engage the upper portion of an adjacent section to raise the same, one end section being secured to the lower end of the lower sash and the other end section being secured to the lower portion of the window frame.

JOSEPH M. LANG. 

